15 Doncaster Drive, Northolt, UB5 4AS

15 Doncaster Drive is a two-bedroom semi-detached house in Northolt (UB5 4AS). It has a recorded floor area of 107 m² (around 1152 sq ft), construction records dating it to 1967-1975 and council tax band D. The latest certificate (November 2022) shows an E (score 47), well below the UK norm with real room to improve. Earlier certificates rated it D (September 2009); the latest reading is one band lower. Between certificates, wall efficiency went from Poor to Average, roof efficiency went from Average to Good and window efficiency went from Average to Good; while hot-water efficiency dropped from Good to Very Poor and main heating dropped from Good to Very Poor. The recommended improvements would lift it to B (score 81), a 3-band jump. Main heating runs on electricity.

Held since November 2009 — that's 17 years off the open market, well above the local norm. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. At 107 m² it's 22.3% larger than the typical home in the postcode (88 m² median across 20 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £496,000 sits 111.1% above the 2009 sale of £234,950. On a £-per-square-foot basis, the last sale (£204/sq ft) was about 32.1% below the postcode norm. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension and partial demolition, meaningful when judging how the property has evolved.